Purpose: This paper aims to describe the statistical arguments produced by third-grade students (8-9 years old) and to identify the teaching support for collective argumentation in a lesson based on data comparison. A Lesson Study Group researched and planned the lesson around a problem from the official mathematics textbook.…

The U.S. is deficient in producing science, technology, engineering, and math (STEM) professionals. Competent problem solving is a desirable educational outcome pertinent to STEM education. Research has demonstrated the effectiveness of teaching task-specific problem-solving skills using behavior-analytic tactics. Learners have been taught to…

"Mathematical Thinking: From Assessment Items to Challenging Tasks" is a compilation of 36 problem-based lessons that encourage students to engage in productive struggle and deep thinking. Its 36 full-length lessons for grades 2-8 are each inspired by an actual test item from the National Assessment of Educational Progress (NAEP).…

To prepare to teach in mathematics classrooms where children learn to justify their thinking, the teachers themselves must have experienced an environment of inquiry, communication, collaboration, and reasoning. Teacher educators strive to establish such environments for preservice teachers (PSTs) and to support their transition from rules-based…

This study investigated how the online problem based learning (PBL) approach employed in an online learning environment influenced undergraduate students' critical thinking skills (CTS) and content knowledge acquisition. The pretest-posttest control group design was used in the study. The subjects included the students who were enrolled at the…

Presents longitudinal analyses of the mathematical achievement and beliefs of three groups of elementary pupils. The groups were designated according to those students who had received two years of problem-centered mathematics instruction, those who had received one year, and those who had received textbook instruction. Results indicate that the…

For the twenty-ninth year, the Research and Theory Division of the Association for Educational Communications and Technology (AECT) is sponsoring the publication of these Proceedings. Papers published in this volume were presented at the National AECT Convention in Orlando, Florida. The Proceedings of AECT's Convention are published in two…